[Richard]

I am sorry but the pics dont help me help you at all. Lets start with the fire suppression system. There is a fire extinguisher on the rear firewall. A pressure switch has been added to the fire extinguisher. If the extinguisher is low, the switch opens, and the engine wont run. Find the fire extinguisher. Measure the continuity across the switch. If it is open, jump across the switch.

Check the last link i sent you for an explanation on how the solenoid switch works. You will need to trace the wires in the loom and use a voltmeter to see if the pull in and hold in is getting 12v

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Or see if you can pm bestgenman on the forum. He lives in Washington courthouse ohio. Not too far out of your way if you are in Chicago